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Ferromagnetic substances:
on the basis of domain theory
A. 1. In a ferro magnetic substance, large no. of domains occur.
2. The direction of magnetisation with in a domain is different from that in the neighbouring domains.
3. The boundary lines are indicate the domains and the arrow within domain indicates total magnetisation.
4. From fig, that the arrows with in the domain point along different directions.
5. As a result, the net magnetisation of the specimen as a whole is almost zero.
A piping system is shown below. Flow is from A to D and minimum pressure to be maintained is 20 psi. Pipe Length (ft) Diameter (in) Flow r
Net force acting on particle of mass 2 kg is 10N in north direction.At t=o, particle was moving eastwards with 10m/s. Find displacement and velocity of particle after 2 seconds.
People believe that seatbelts are a MUST. But they think that they could increase the risk of other road users. Explain why it would be difficult to gather evidence for this idea..
Neutron is a fundamental particle which is necessary constituent of all nuclei except that of hydrogen molecule. It was discovered by Chadwick. (1) The charge of neutron: It is
Standard quantum limit: The restriction imposed on standard methods of measurement through the uncertainty principle inside quantum mechanics.
What are parallel forces?
A block of metal which weighs 60 newtons in air and 40 newtons under water has a density, in kilograms per meter cubed, of: a) 1000 b) 3000 c) 5000 d) 7000
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What are a quarter wave plates? Get the expressions for its thickness in terms of refractive indices for E-ray, O-ray and wavelength?
The shear force of a cantilever beam of length L carrying a uniformaly distributed load W Per unit length is how much at fixed end
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